Edge-gage for sewing-machines.



P. SJOSTROM.

EDGE GAGE FOR SEWING MACHINES.

APPLICATION FILED APR.24, 1915.

. Lwentor: lelerjosbom,

1m: COLUMBIA PLANOGRAPH co., WASHINGTON, D. c.

. UNITED STATES.

PETER. sios'rnoM, or MAPLEWOODLMASSACHUSETTS, ASSIGNOR.TO vroron'snon PATENT ormon.

MACHINERY COMPANY, OF LYNN, MASSACHUSETTS, A CORPORATION OF MASSA- CHUSETTS.

, T all whom it may concern:

Be it known that I, PETER SJOSTROM, a subject of the King of Sweden, and a resident of Maplewood, in the county of Middlesex' and State of Massachusetts, have invented certain new and useful Improvements in Edge-Gages for Sewing-vfachineg of" which the following is a specification.

This invention relates to edge gages, for sewing machines especially adapted for sewing boots and shoes, and has for its object the production of a device of this character which will be simple and inexpensive to make while very efiective in its operation.

The present invention is particularly adapted to be applied to a machine such as is fully shown and described in another application of mine filed February 17, 1915, and numbered 9,465, and to which reference may be made for the complete operation of the machine.

The invention consists in certain novel features of construction and arrangement of parts which will be fully understood by reference to the description of the drawings and to the claims hereinafter given.

Of the drawings: Figure l representsaside elevation of a device embodying the principles of the present invention, and Fig. 2 represents a front elevation of the same.

Similar characters designate like parts throughout the several figures of the draw ings.

In the drawings, 10 is a portion of the frame of a sewing machine provided with a pivot member 11 extending laterally therefrom on which is mounted a lever 12 having an upwardly curved arm the extreme upper end 13 of which is parallel with the front of the machine and rests upon the work support 14 of any well-known construction.

The work 15 is retained in contact with the work support 14 by means of the usual presser foot 17 and the edge of said work 15 bears against the front face of the portion 13 of the lever 12 and is fed in the usual manner while contacting therewith. The lever 12 is provided with a downwardly ex-. tending arm 18 having an ear 19 projecting laterally therefrom in front of the frame 10. This ear 19 is provided with an opening 20 therethrough, somewhat larger than the shank 21. of an adjusting screw, the head 22 of which bears against the outer face of the ear 19. The shank 21 is threaded to the Specification of Letters Patent.

7 EDGE-GAGE FOR snwInG-MAerrmns.

frame 10 and may be adjusted relatively thereto to regulate the positionof the bearmg portion 13 ofthe lever 12 relatively to the work support 14.

Surrounding the shank 21and interposed between the front face of the frame 10 and therear face of the ear 19'is an expansion spring 23 the pressure of which retains the front face of the ear 19 in frictional contact with the head 22' of the adjusting screw and thereby prevents its accidental rotation.

The lever 12 may be made of sheet metal stamped into shape and thereby reduce the expense of manufacture.

As the head 22 is moved outwardly from the frame 10 the spring 23 will cause the ear 19 to follow outwardly, thereby increasing the distance between the front face of the gage 13 and the front edge of the work support 14. r

This makes a very simple but efiective edge and means coacting with said arm for adjusting said lever about its pivot leverconsisting' of a member movably mounted on said frame.

2. The combination with a work support and a frame in which said support is mount- Patentedliiar. as, 1916. 7 Application filed A ru 24, 1 915. Serial No. 24,133.

ed, a lever pivoted to said frame in a plane below said work support having a curved extension adapted to form an edge gage and provided with a radial arm below its pivot; and means coacting with said arm for adjusting said lever about its pivot consisting of a headed member extending through a slot in said arm and threaded to said frame.

3. The combination with a work support and a frame in which said support is mount- 7 ed, a lever pivoted to said frame ina plane below said work support having a curved extension'adapted to form an edge gage and provided with a radial arm below its pivot;

means coacting with said arm for adjusting said. lever about its pivot consisting of a headed member extending through a slot in said arm and threaded to said frame; and a spring for retaining said arm in contact with the head of said adjustingmember.

4. The combination with a work support limit the movement of said lever in one di-' rection about its pivot.

5. The-combination with a work support Copies of this patent may beiobtained .for five cents each, byaddressing the and a frame in which said support is mount ed, a lever pivoted to said frame. in a plane below said Work support having a curved extension adapted to forman edge gage and z provldedwith an OPPOSltQlY ClISPOSQCl ZIIm havin a slotted car an ad'ustin member b J a a having a shank extending through the slot in said ear and threaded-to said frame and providedwith ahead forming a stop to limit the movement of said lever in one direction.

about its pivot; and a spring for retaining said ear in contact with said head. v

Signed by me at 4 Post Ofiice Sop, Boston,

Mass.,.tl1is'23rd day of April, 1915..

PETER SJOSTROM.

Witnesses:

WALTER LOMBARD, NATHAN C. .LOMBARD.

Commissioner of Patents,

Washington, I). 0. 

